TW382647B - Bilge pump - Google Patents

Abstract

Pumps, for example, bilge pumps, comprise a pump housing including an inlet and an outlet, a motor and an impeller assembly coupled to the motor for pumping liquid which passes through the outlet. The motor is advantageously cooled by pumped liquid while being protected from the pumped liquid. Further, the motor is turned on and off in response to actual operating conditions, thereby increasing pump life and reducing overall power consumption. The pump provides contoured facing surfaces which provide a dynamically efficient flow path for the pumped liquid. In addition, a switch housing is preferably provided to allow liquid to contact an activator assembly which turns the motor on.

Description

Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economics. The invention description is related to the system used to extract suspended liquid, salt water and so on. DETAILED DESCRIPTION The present invention relates to a pump that has high efficiency and can be efficiently and simply cooled and controlled. Sewage ^ is used to remove water and other liquids from the ship. A variety of systems have been proposed. The sewage is usually contaminated by solid liquids, & materials, which may damage or interfere with the operation of the pump and / or the system. For # 水系, the above characteristics are very important when such a long-term operation requires long-term operation but little or no maintenance, and must be reliable even after long-term operation stop. In addition, the switch cycle of sewage collection has an adverse effect on the service life of energy consumption # and ㈣. Therefore, controlling the state of the switch is very important for the operation of a sewage pump. Therefore, for a pump such as a sewage pump with high efficiency and efficiency, good control characteristics, long life and reduced maintenance requirements, there is always a need. . SUMMARY OF THE INVENTION Nowadays, liquid pumps, such as pumps for pumping dirty liquids, saline water, etc., will be disclosed below. The pump of the present invention has the advantage that liquids at relatively low temperatures, such as dirty liquids, can be drawn for cooling the pump motor. This method of effectively cooling and directly cooling the motor enables it to achieve very efficient pumping operation. Furthermore, although the dirty liquid is in contact with the motor casing, the motor is effectively protected directly from the motor to the shaft. · ^ -4 This paper size applies Chinese National Standard (CNS) Α4 specification (210 × 297 mm) IJ 0 .---- Ik-- ί Please read the precautions on the back first and then 4 / write this page) Order, invention Note that another feature of the present invention is to provide the pump housing, the motor housing and the pump with the same shape or outline of the thruster assembly, so that it can provide a very effective and dynamic flow of the extracted liquid Path or passage. In this way, the extraction efficiency can be improved. Furthermore, the pump casing preferably includes a gas-removing rib or blade, and its shape and contour can be more equivalent to the facing motor casing. Such contouring of the pulp leaves can improve the extraction efficiency and reduce the waste of energy. In yet another feature of the present invention, the pump has a starter assembly which can, for example, start the motor when the liquid outside the pump casing reaches a certain level. A cap system is used to contact the liquid with a part of the starter assembly 'to provide the required start signal. At the same time, the cover can effectively prevent solid debris from interfering with the liquid's contact with the starter assembly. Another feature is to provide. The pump has an electric motor 1¾ and includes a current sensing assembly for sensing the amount of current used when the motor is running. The current sensing assembly can effectively stop or shut down the electric motor when the amount of current used is small. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs The last two features mentioned above provide a very effective and reliable control system for shutting down or starting the pump. In both cases, the pump is turned on or off depending on a specific operating condition, rather than, for example, turning it on or off at regular intervals. Starting or closing the pump according to the actual operating state can effectively improve the efficiency and effectiveness of the pump, increase the service life of the pump and reduce the overall energy consumption. From a broader perspective of the present invention, the pump of the present invention includes a pump housing, which preferably has opposite first and second end edges and defines a chamber; an injection port, which is located in the pump Inside the casing and preferably at the first end edge-5- Each paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 B7 V. The invention description department; a discharge port, which is located in the pump casing Preferably, it is at the second end edge; a motor; and a thruster assembly which is movably attached to the motor for extracting the liquid passing through the injection port. It is preferred to have a motor outer casing which extends into the cavity defined by the casing. In a practical embodiment, the pump casing, the motor casing, and the child thruster assembly together form a liquid passage from the injection port to the discharge port. The fluid passage preferably extends within the chamber defined by the pump housing along at least a substantial portion of the length of the motor housing. The discharge port, for example, is at the second end portion, which is preferably positioned relative to the liquid passage so that the liquid can pass through the discharge port, which is substantially tangential to the longitudinal axis of the pump casing. direction. The main part of the liquid passage is preferably defined by the inner surface of the casing and the outer surface of the motor casing. The liquid torch may be formed, and preferably formed in such a manner as to form an annular space between the pump casing and the motor casing. Formation from liquid transport is preferably such that when the liquid flows from the injection port to the discharge ', the liquid in the liquid passage can be used to cool the motor. This type of cooling is ^ Aita's policy and direct, and does not require additional coolant or equipment.

V: In another very practical embodiment, the motor housing has a curved outer contour surface, which is a curved inner surface facing the pump housing. In this article, the term "curved" or "contour" is defined on the inner surface of the pump casing and the outer surface of the motor casing. " 'Line and shape. These faces are relatively lacking in curved surfaces, and it is best to set them down. 6. Outline (21〇 '/ 297mm> Please' h. Read the notes on the back and write this page to print the stamp of the staff consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. System A7 B7 • 4 V. Description of the invention Please read the notes on the back, and then place it near the system's injection port instead of the discharge port, for example, it is located at the change between the bottom and the side wall of the pump casing. The curved inner surface of the pump casing and the curved outer surface of the motor casing together define a portion of the liquid channel, and their curvatures are approximately equal. The equivalent curvature or contouring of these two surfaces can be quite effective To provide an effective dynamic path for the pumped liquid on the ground, so that the liquid can flow from the injection port of the pump to the discharge port. The moving path can improve the efficiency of the pump, reduce energy consumption, and reduce Energy consumption caused by improper backflow mixing of liquid in the pump. The pump casing includes a plurality of ribs extending inwardly from the inner surface of the pump casing. These ribs can effectively exclude gas that may be present in the pump when the pump is started after a stop period. Preferably, the ribs are curved so that they are roughly equivalent to the motor housing The curved portion of the external surface .. This can easily provide a dynamic flow path to the liquid being pumped. Therefore, these ribs, such as those that are curved, can not only effectively provide gas removal that can improve extraction efficiency, but also It can also promote the flow of the pumped liquid through the pump, which can further improve the efficiency of the pump. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs In another aspect of the present invention, a starter assembly is movable Attached to the motor, it is used to start the motor when the liquid on the outside of the pump casing reaches a limited position corresponding to the Baoyuan. This starting assembly can include a buoy device, a conductivity type Probe assembly, etc. In this art, several types of this type of starter assembly are well known. It is best to have a cover with the casing of the pump, which can surround the starter assembly The part in contact with the liquid. The cover includes a number of paper sizes applicable to the Chinese National Standard (CNS) A4 specifications (210X297 mm). A7 B7 '' V. Description of the invention (5) Long perforated parts Can make the liquid on the outside of the cover contact the part of the starter assembly. This part is contoured inward towards the pump casing to prevent the debris in the liquid on the outside of the cover from blocking the long shape Perforation. Therefore, the liquid can pass through the long perforation and make contact with the starter assembly, thereby providing a clear indication that sufficient liquid is present to start the motor. This is an important aspect of the present invention. From the viewpoint, the dirty liquid is usually contaminated by debris, which will block the passage of the liquid to the starter assembly. By providing the formed cover body, the debris can be prevented from adhering to the cover body, the long The shaped perforation can effectively provide the passage of the liquid into contact with the starter assembly, so that it can start the motor as required. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the notes on the back before filling this page). In another aspect of the invention, a current sensing assembly is provided in an embodiment including an electric motor. The current sensing assembly is movably attached to the electric motor to sense the amount of current used to run the electric motor, and stops when the amount of current used to run the electric motor is less than a limit. The operation of the electric motor. This is a very effective way to turn off the motor. When no liquid can be pumped, the load on the thruster assembly and its accompanying motor is greatly reduced. This results in less current required to run the motor. When the current sensing assembly senses the reduced amount of current, the motor is stopped or turned off. Dan, in a very specific operating state, that is, when there is no liquid to be pumped, the motor is turned off. When the current sensing assembly is used in combination with the starter assembly that can start the motor when there is sufficient liquid to be extracted, a very effective and efficient switch control system can be provided. Repeatedly, the motor is started when the liquid is present, and when the liquid is not present _-8- ._ This paper size applies to China National Standard (CNS) A4 specifications (210X297 mm) A7 B7 Central Bureau of Standards, Ministry of Economic Affairs Printed by Employee Consumer Cooperative

V. Description of the invention (1 means that the motor is turned off. P will not be the invention (two or more features of the system contradict each other, no: included in the scope of the two inventions of any one or more features described herein) ^ Η In these or other aspects of the present invention, __, ..., and Zhanhe can be described in the following < detailed explanation, especially, and the same reference numerals are used in conjunction with the attached Yan Ganyue system. A simple description of the + -inner figure Figure 1 is a front side view 7 on the upper side, _ a jackal wolf-Wanshi shows an embodiment of the water pump according to the present invention. Figure 2 of the goods Λ is a Shown in Figure! Sectional view of the sewage pump. Figure 2 is a sectional view taken along line 3_3 of Figure 2. Figure 4 is a sectional view of a modified embodiment of the pump motor according to the present invention. Series 5-a schematic diagram showing an example of the control system of the pump. Figure 6 is the current sensing of the 养, ώ, 从, and π ^ Υ of the mercury that are shown in Figures 1, 2, and 3. One of the outline diagrams of the assembly. The detailed and sharp picture of the cold water chestnuts shown in Figures 1, 2, 3 and 5 is shown as 10 overall, and includes a poly shell 12, A connection housing 14, a lower motor housing or a spacer upper or a king motor housing 18, an electric motor 2q, an electromagnetic coupling = 22, a propeller including a downwardly extending fiber blade 26, a cover or closed housing 3 〇. The screw-type fixing piece 32 (there are four in number) is used to attach the casing ㈣ -9- This paper ^ _ degree applies to the Chinese National Standard (0 Yang) 6 4 specifications (21〇 parent 297 mm) A7 B7 V. Description of the invention (connected to the main motor housing 18 and the connection housing 14. In order to provide proper alignment between these housing parts t, it has a series of matching nail hooks and recesses. 口 此 栗 外 汉 12 The opposite extension flange 34 includes two hooks 36 (one of which is shown), each of which is used to be received in an opening 38 on the flange 40 of the extension penetrating motor housing 18 and extends out of the extension. Into the opening 4 2 on the flange 4 4 of the housing 14. In this way, these housing parts can be adjusted appropriately to lock them together. The flange 4 〇 includes a ring for receiving a 10-shaped ring 48 的 槽 槽 46 ， and the flange 34 includes a -0 ring 5 It annular recess The grooves 5〇 ^ These ◦ rings 48 and 51 are when the housing parts are locked together, for example, it can effectively provide a liquid-proof leakproof seal, as shown in Figure 2. Employees of the Central Standards Bureau of the Ministry of Economic Affairs and Consumer Cooperation The company prints the pump casing. 1 2 includes an injection opening 5 2 and a discharge opening 5 4, and includes an inner side wall 56 of a main foot exit cavity 5 8. A liquid channel 60 is located in the chamber 58. It extends from the injection opening 52 to the discharge opening 54, and the channel is defined by the inner wall 56 of the pump casing 12, the propeller 24, the outer casing 62 of the spacer 16, and the outer wall 64 of the main motor casing 18. The liquid passage 60 defines a passage through which liquid can flow from the injection opening 52 to the discharge opening 54. As can be clearly seen in Figs. 2 and 3, a main part is-an annular space-between the pump housing 12 and the spacer 6 and the main motor housing 8-which at least occupies the liquid channel 60 of 50%. When a liquid extracted by the operation of the propelling blade 26 passes from the injection opening 5 2 to the discharge opening 54 in the liquid passage 60, the liquid system is substantially separated from the outer surface 64 of the main motor casing 18. contact. Because the extracted liquid usually has-quite low or more + temperature, the contact between the liquid and the motor casing can effectively cool the -10- (please read the note f on the back before filling this page) Country of this paper Standard (CNS) 8 4 miscellaneous (^ T ^ 297), invention description (8)% moving motor 20. This cooling method requires additional coolant or equipment. 1 is quite simple and straightforward to complete, moreover, the discharge port 5 4 is a locator body, which is connected to the outer shell 12 ^ 1 so that the extraction liquid in the liquid channel 6Q exits the liquid channel 60. This can be reduced: 66 resistance in the direction of the main tangent to leave or row, the field is high, ^ is low, the extraction is liquid, the main motor housing 18 is through interference or friction fit, and the ring seal 65 is placed on the main motor housing Two: Magnetic two :: 2 mouth 267. The 0-shaped% ring 65 can effectively seal the motor 20 and the electric motor 22 to prevent the liquid material from passing through the liquid channel 60. During the pump operation, 'make the main outer 18, the spacer 16 and the 0-ring ^ Keeping it solid ^ Do not record the important 1 for the seal and the motor bite during the operation, "the rotation or movement of the shirt is fixed or static ^ can effectively increase the life of the card, and at the same time effective Ground. Prevent the dirty > liquid from coming into contact with the motor 20 or the electromagnetic coupling 22. '/ The electric motor 2G of the conventional design printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Carpling is placed in the main motor housing 且 and the shaft 68 is abutted there. The electromagnetic coupling 22 is locked on the rotating shaft 68 by a group of screws 70. The electromagnetic coupling 22 includes an active magnet 71 extending around the thruster 24. A smaller The driven magnet = is locked on the thruster 24, and is positioned at a position radially inward of the driving magnet 7. The position and shape of the driving and driven magnets 71 and 72 can make the current motor 2 〇 When running to rotate the rotating shaft 68, the electromagnetic coupling 22 will also rotate, The introduction of magnetic force causes the propeller 24 to rotate. The rotating propeller 24 causes the propeller blade 2 6 to lift the liquid flowing into the injection opening 52 -11-The paper size applies the Chinese National Standard (CNS) A4 specification (2丨 〇 > < 297 mm) A7 B7 V. Description of the invention (9

For extracting I action. In this way, the liquid flowing into the injection opening 52 is drawn through the liquid passage 60 to the outlet passage 54V. The pusher 24 is fixed in position by a screw / washer combination 74, where the screw / The cymbal assembly is locked to the downwardly extending center of the spacer 16 卩 7 6 'and extends outward to fix the thruster in position, so as to prevent the thruster 2 4 from being electromagnetically coupled 2 2 The structure of the part where the β fluid passes 6 0 close to the injection opening 5 2 is used to lift, 4> the extracted liquid ancestor-a dynamic flow path. In detail, the chestnut shell 1 2 (the lower edge of the inner side wall is divided into 7 8 and its outline is approximately complementary I β thruster 2 4 has a contoured or curved surface wall 8 〇 and a spacer 16 = Face wall 82. The term " complementary " as used herein refers to the curvature or contour of these facial surfaces, where the curvature or contour of each facial surface is approximately the same in angle and width. The equivalent of these facial surfaces The bend or profile can provide—a smooth or dynamic effective flow path to the pumped liquid so that it can pass from the injection opening 52 into the liquid channel 60 and reach the discharge outlet 54. For example, relative to—substantially the same pump And one or both of the facial surfaces are linear and / or form a chamfer (approximately 90 degrees "when viewed in a cross section of a plane including the longitudinal axis of the lower pump casing), this Such a profile or curve can reduce the overall energy consumption and improve the extraction efficiency. Furthermore, the portion of the pump casing 12 that transitions between the bottom and the side wall of the part includes a series of three ribs 84. These ribs 84 may Effectively use: Exhaust this, for example, because of the gas that may be present in the liquid channel 60 during the period when the system is stopped. The rib 84 includes a surface 86 that faces the surfaces 80 and 82 of the thruster 24 and the spacer 16 respectively. .-Each rib table—i .--------- Order ---- ,, '-(Please read the precautions on the back before filling out this page) Consumption Cooperation Du Print # 1. I! -12- This paper size applies the Zhongguanjia Standard (CNS) Α4 silk (2 丨 to 297 mm)

V. Description of the invention (10) The surface 8 6 is% curved or contoured 'to be approximately complementary to the curvature of the surface 80 and 82. The complementary bending or contouring allows the extracted liquid to easily pass through the liquid passage 60. Therefore, the rib body 84 can not only effectively exclude the gas that may be located in the liquid transportation, but also promote the flow of the liquid in the liquid passage due to the complementary contour or curvature. γ In the embodiments of Figs. 1, 2 and 3, the lower edge portion of the pump housing 2 includes-a base 8 8, which includes a series of openings 90 extending laterally to surround the base. The openings 90 are configured so that a dirty liquid can flow into the injection opening 52 through the openings 90. These openings are formed to prevent solid fragments from entering the liquid channels. In use, the pump 10 can be placed inside the hull of a vessel, so that the liquid collected in the hull allows the pump to be removed by 10 and the buoy assembly 28 is attached to the vessel in a traditional and well-known manner. Electric motor 20 on. Therefore, the details of this attachment method will not be repeated here. The buoy assembly 28 is used to reflect the level of the liquid surrounding the pump 10, so that when the liquid level reaches a certain level, the electric motor is started or turned on. Although the 28-buoy assembly is shown in the drawing, a conductive probe sensor 5F can be used instead, and the electric motor 2 is activated when the liquid surrounding the pump 10 reaches a certain level. The outside of the switch 30 and the above-mentioned shell parts together surround the buoy assembly 2 ^ 8. And also to prevent solid debris from interfering with the operation of the buoy assembly. The outside of the switch is locked to the pump casing i 2 and the connection casing 4 and the main motor casing 18. The switch housing 30 includes two spaced apart screw holes 31 (one of which is shown in FIG. 1), which are aligned with two fixing members (CNS) A7 for connecting the housing parts together ----- ------------ B7 V. Description of the invention (11) Φ A The two fixing pieces are used to store and fix in the empty space defined by the screw hole 31, so that the switch The housing 30 is connected to the housing parts. As shown in FIG. 1, the switch. The housing 30 includes a series of elongated narrow holes 92. This = hole can effectively make the dirty liquid contact the buoy assembly 28, so that the buoy = to start the pump when the liquid level reaches-a fixed position, the switch = the outer shape of the shell, especially the system The lower edge portion 94. of the switch housing 30 is advantageous. Therefore, the lower edge portion 94 of the switch housing 30, which includes an elongated opening 92, is inclined inwardly or curved or contoured toward the pump housing 12. The tilting or contouring of the lower edge portion 94 of the switch housing 30 has been found to prevent the solid debris existing inside the dirty liquid from adhering to the connection, and the barrier-stop-dry buoy assembly 2 of 8 Act. Therefore, when the debris contacts the lower edge portion 94 of the switch peripheral 30, the debris is removed from the opening 92 because the lower edge portion 94 is tilted inward. Therefore, the opening 92 can remove debris and allow liquid to pass there and contact the buoy assembly 28.

Touching 'thus makes it possible to start the pump 10 when the level of the liquid is at a defined level. V Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs As shown in Fig. 5. As shown schematically, the pump 10 includes an electric current sensing assembly 96 'which is used to display the current used by the electric motor 200. The current sensing assembly 96 is programmable, so that if the amount of current used by the motor 20 is reduced to a defined threshold, the current sensing assembly 96 will turn off the motor. In this way, using the current induction assembly 9 6 to turn off the electric motor 20 can also be regarded as a || automation, mode. Therefore, as the current sensing assembly 96 operates in an automatic mode, when the buoy assembly 2 8 indicates the presence of dirty liquid, the electric motor can be activated. The motor 20 will continue to run until the advance -14-the paper X degree applies to the Chinese National Standard (CNS) A4 specification (210 × 297 mm) A7 B7 printed by the staff consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 12) The device 24, including the propelling blade 26, reaches a locked position where an electromagnetic coupling 22 slides down and reduces the current used by the motor 20. In the event that the buoy assembly 28 indicates that the water level is locked with the thruster 24, the circuit will lock the motor 20 until it is switched to manual operation mode or turned off for a few minutes before it is turned on. The current sensing assembly 9 6 series is equipped with a manual priority switch 9 8, which can continuously run the motor 20 regardless of whether the water level is at the injection opening 5.2 or the thruster 24 is at a locked position. ^ Figure 6 provides a schematic diagram of the circuits of the current sensing assembly 96 and the manual priority switch 98 described above. The current sensing assembly 9 6 generally includes a battery 3 10, a buoy switch 3 12 and a manual priority switch 9 8. The battery 3 10 includes a positive electrical terminal 3 14 and a negative electrical terminal 3 16. The positive terminal 3 14 is connected to the electric motor 20. Also connected to the electric motor 20 are a MOSFET 322, a current sense resistor 324, and a transistor 326. The current-sensing resistor 324, as will be implemented soon, is generally used to sense whether the electric motor 20 is used for pumping water. When the electric motor 20 is used for pumping water, a high current passes through the current sensing resistor 324. When the electric motor 20 is not used for pumping or tied to a locked thruster, a lower current passes through the current-sensing resistor 324. y When a current passes through the current-sensing resistor 324, a large voltage drop across the current-sensing resistor 324 is induced at the base 3 3 0 of the transistor 326, and then 'the' The transistor 3 2 6 is activated. The current collector 333 of the transistor 326 is relatively weak. If the current collector 333 maintains a weak state for a period of several seconds in the preferred embodiment, the RC circuit 336 __15 -__ This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) ( (Please read the notes on the back before filling out this page)

, 1T printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 1 1 B7 V. Invention Description (13) Send this low signal to the signal line 3 3 8. On the other hand, when the current through the current sensing resistor 324 is small, the current collector 333 of the transistor 326 is high. If a high voltage is maintained on the current collector 333 for several seconds, this signal passes through the RC circuit 336 and reaches a signal line 338. So, in summary, the signal line 338 is higher when there is no water or the thruster is locked, and it is lower when the electric motor 20 is turned off or running at a normal water level. Looking back at the buoy switch 3 12, the buoy switch 3 12 includes two terminals 343 and 345. The presence of the water level will move the buoy 28 so that the two terminals 343 and 345 of the buoy switch 3 12 can be connected together, corresponding to a high output of the NAND gate 347. The high output of the NAND gate 347 corresponds to a state, and as long as the high water level state is not short-lived, the electric motor 20 will be started. A transient state may occur, for example, where a water wave is detected, and the water level in the non-transient state is not high enough to start the electric motor 20. The RC circuit 350 only transmits a signal from the NAND gate 347. If the signal can be kept fixed for several seconds, as the specific implementer here. If no water level exists, the buoy 28 series is positioned so that the two terminals 343 and 345 of the buoy switch 3 12 are not connected, and the output of the NAND gate 347 is reduced. The NAND gate assembly 360 is basically used when the output of the NAND gate 347 is high and the electric motor is activated, the output 362 of the NAND gate 364 provides a higher signal. When the electric motor 20 should not be activated and the output of the NAND gate 347 is low, the output 362 of the NAND gate 364 is reduced. __ -16-_ This paper size applies to Chinese National Standard (CNS) A4 (2lOX297 mm) (Please read the precautions on the back before writing this page)

A7 B7 V. Description of the invention (14 Please read the precautions on the back before filling in this page. The manual priority switch 98 is connected to the ground when it is activated, and it is pulled up when it is closed. When the system is closed, the circuit 369 is rampant, so as to enable the NAND gate 364. However, when the manual priority] gate 9 8 system is started, the circuit 3 69 is lowered and the gate 364 is lost because of this. Why, when the NAND gate 364 has an " S output at the line 369, it is on the line 362; the output of the NAND gate 364 is always high. According to the pump j of the present invention, its closing and starting end view The characteristics of its actual operation state are quite important. So, when there is liquid to be pumped, the buoy assembly 28 starts the motor 20, and when no liquid is present or when the propeller 24 is locked and unable to In the running state, the current sensor assembly 96 will turn off the motor. In the prior art system, such as disclosed in US Patent No. 5,324,170 of An = t0S et al., Among them disclosed in. This is incorporated in its entirety for reference It shows the% voltage and current used by an electric motor, and starts the system at regular time intervals, regardless of whether there is any liquid to be pumped. This "regular time interval" system is very important for energy systems Waste, because the gathering may be started without any reason. However, the pump of the present invention, wherein the pump is only in the presence of the pumped liquid printed by the Consumer Cooperative of the Central Sample Bureau of the Ministry of Economic Affairs. It can be started, which is more efficient, can reduce wear and reduce energy waste. The pump 210 shown in Fig. 4 can be used, for example, as a bait tank pump, and has many of the same characteristics. In the part of the description, the pumps 10 and 210 have approximately the same structure, and the components of the pump 21 are referred to the pump 10 with the same reference numerals plus 200. -17-

This paper is again applicable to China National Standard (CNS) A4 ^ T ^ x297; W Five 'invention description (15 A7 B7 The main differences between pump 10 and pump 210 are: (1) pump 210 does not include- Buoy assembly, switch housing or current sensing assembly; and (2) the pump 210 includes a / ¾ injection port assembly, which is generally designated as 102. The dual injection port assembly 102 allows liquid to flow from a parallel to the pump The opening portion 104 of the longitudinal axis 266 of the housing 212 leads to the injection port 252. The opening portion 106 is perpendicular to the longitudinal axis 266 and is used to 'wash the pump as a periodic use when necessary (Not shown) injection port. The screw-type fixing member 108 is used to fix the dual injection port assembly 102 to the base 288. The purpose of the injection port 104 is to allow the water level below the pump 2 to 10 to be pumped. Generally, the pump 2 is operated manually, which is based on, for example, maintaining the bait on the ship, which is suitable for live bait. The seawater system is pumped a distance by the pump 21, such as about 3 inches w, And fed into the bait tank. In addition to the manual switching device, in the embodiment of the pump, no other Control system. Although the present invention & is described for different specific examples and real estate ^, I should understand that the present invention is not limited to this, and it can be implemented in different ways within the scope of the patent application below F% Read the notes on the back first. ¾.¾1 This page j 0 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs • 18-μs㈣ Applicable to Chinese national standards

Claims (1)

Scope of patent application A8 B8 C8 D8 Printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 1. A department comprising: a pump housing having first and first chambers of the first and second pairs; H margins and boundaries. An injection port is defined, which A first end edge portion located in the pump casing; a discharge port located at the second end edge portion of the pump casing. A motor casing extending to the first chamber defined by the pump casing A motor, which is located in the motor housing; a thruster assembly, which is movably attached to the motor, extracts the liquid that enters the face chamber through the injection port; and uses the pump housing and the motor housing And the thruster assembly together form a liquid passage from the injection port to the discharge port. 2. The pump according to the scope of the patent application, wherein the motor casing has a length, and the liquid passage extends in the chamber along at least a substantial portion of the exterior of the motor. ^ ^ 3_ According to the scope of patent application! Xiangma pump, in which the pump housing has a ~ axis, and the discharge port is positioned relative to the liquid passage, and the liquid passage, when the discharge port, is tangential to the longitudinal axis of the pump housing . To 4_ The pump according to the scope of the patent application, wherein the liquid channel is shaped so that the liquid in the liquid channel can cool the motor when it moves from the injection port to the discharge port. 5. According to the scope of patent application! The pump of the item, which includes an electromagnetic coupling, is used to movably attach the motor to the propeller assembly, and the unit should be placed by a long vertical unit. Quasi (CNS) eight secrets (21GX297 Gongli) A8 B8 C8-; ^ --- D8 '', + please patent ": --- a motor casing including a first-outside super but dazzling, s eight coins Khan Han Pi is connected to a second housing part: and-the seal located between the first and second housing parts, so that-political: also prevents liquid from passing there, and during the operation of the pump, The first and second shell parts and the seal are fixed. 6. ^ According to the patent, the scope of patent is requested! The system of the item, wherein the motor casing includes a curved portion of the surface, and the material casing includes a curved portion of the inner surface. The two curved portions together define a portion of the liquid channel, and their bending systems are approximately Complementary. 7. According to the claim 6 of the patent scope, the thruster assembly includes an outer surface, and the pump casing includes a curved portion of the internal surface, and the outer surface defines the liquid together with the curved portion. A portion of the channel 'and its curvature are substantially complementary. 8_ According to the scope of patent application! The pump of claim, wherein the pump casing includes a plurality of inwardly extending ribs, and each rib system is bent into a curved portion substantially complementary to an outer opposite surface of the motor casing. 9. According to the scope of patent application! Item of the pump, further comprising-a starter assembly movably attached to the motor, the starter assembly is used to print the liquid corresponding to the outside of the pump casing by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs The motor is actuated on time at a limited position. 10. The pump according to item 9 of the scope of patent application, which further includes a switch housing that, together with the housing, surrounds the part of the starter assembly that is in contact with the liquid. The switch housing includes a plurality of elongated perforated portions, so that liquid can contact the starter assembly from the outside of the switch housing, wherein the portion is inwardly turned toward the pump housing and turns into a fan. ，, -20-This paper size applies to Chinese National Standard (CNS) Α · 4 size (210X297 mm) Application scope of patent A8 B8 C8 D8 Ministry of Economic Affairs Central Bureau of Accreditation KK Industrial Cooperative Consumption Printing to avoid existence in the switch Fractured perforations in liquid on the outside of the enclosure. The π% I long Ut patent claims the scope of item 9, wherein the motor is an electric motor: and its further steps include-movably attached to the electric motor: ^ Current induction assembly, It is used to sense the amount of μ used to run the electric motor, and when the amount of current used to run the electric motor is less than =, and stop the operation of the electric motor.疋 ^ 12 · —a pump comprising: a pump housing having a curved inner surface; an injection port located in the pump housing; a discharge port located in the pump housing and connected to the pump housing The inlet is separated; a motor housing is fixedly connected to the pump housing, and has a curved outer surface facing the curved inner surface of the pump housing; a motor located inside the motor housing A thruster assembly that is movably attached to the motor to extract the liquid passing through the injection port; and the casing, the motor casing, and the thruster assembly—to form—the injection port to The liquid passage of the discharge port, and the curved inner surface and the curved outer surface form a part of the liquid passage, and their curvatures are substantially complementary to each other. 13. The pump according to item 12 of the scope of patent application, which comprises an electromagnetic coupling for movably attaching the motor to the thruster assembly, and the dream motor housing includes a first housing part system. Connected to one take two outside _ points, and a seal located between the first and second housing parts, J to bend the surface and (Please read the precautions on the back before filling oxygen, this page), 11 Φ -21-Good paper shape ^ Applicable to China National Standard (CNS) Sixty-four (21GX297 mm), the scope of patent application is valid = prevent liquid from passing there, and when the pump is running, the first and second shells Shao Fen and the seal are fixed. 14. According to the system of item 12 of the patent claim, wherein the thruster assembly includes an outer surface and the casing of the child pump includes a curved portion of the inner surface, the outer surface and the curved portion together define the liquid passage. One part 'and its bending are substantially complementary to each other. 15. The pump according to item u of the patent application park, wherein the pump casing includes an inwardly extending rib, and each rib system is bent to be substantially complementary to the The curved portion of the outer opposite surface of the motor housing. 16. The pump according to item 12 of the patent application scope, further comprising a starter assembly movably attached to the 菘 motor, the starter assembly being used to correspondingly When the liquid on the outside of the pump casing reaches a limited level, the motor and a switch casing are turned on. The pump casing and the pump casing, which surround the opener assembly in contact with the liquid, include one of the switch casings. There are a plurality of long perforated parts so that the liquid can contact the funnel of the starter assembly from the outside of the switch housing, wherein the parts are turned inward toward the pump housing. No need to exist, the debris in the liquid on the outside of the switch block the long perforation. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economy. And it further comprises a current sensing assembly movably attached to the electric motor for sensing the amount of current used to run the electric motor, and when the amount of current used to run the electric motor is less than a limited amount , 18. Stop the operation of the electric motor. 18. 18. A kind of pump, which includes: -22- Wood paper size applies Chinese National Standard (CNS) Α4 specification (2 丨 0X297 mm) A8 B8 C8 D8 Central Bureau of Standards, Ministry of Economic Affairs Employee Consumer Cooperative Co., Ltd. prints the patent scope of a pump casing; an injection port located in the pump casing; a discharge port located in the pump casing and separated from the injection port; a motor; a A thruster assembly which is movably attached to the motor to extract the liquid passing through the injection port; a starter assembly 'which is movably attached to the motor The starter assembly is used to start the motor when the liquid on the outside of the pump casing reaches a limited level; and the switch casing ', which together with the pump casing surrounds the portion of the starter assembly that is in contact with the liquid The switch housing includes a plurality of elongated perforations " Shao bits " so that liquid can contact the portion of the starter assembly from the outside of the switch housing, wherein the portion is inwardly directed toward the poly housing To prevent the debris existing in the liquid on the outside of the switch casing from blocking the elongated perforation. 19. The pump according to item i 8 of the scope of patent application, wherein the motor is an electric motor, and further includes a movable The electric current induction assembly attached to the electric 2 is used to sense the amount of electric users used to run the electric motor, and when the amount of electric current used to run the electric motor is less than-limit = 2, the stop is stopped. Operation of electric motor. U 20. A pump comprising: a pump casing; an injection port located inside the pump casing;-a discharge port located inside the pump casing and separated from the injection port; (please read first (Notes on the back are filled again ¾¼ pages) -Packing _ 、 1T -23- A8 B8 C8, D8 r VI. Patent application scope-an electric motor; a thruster assembly, which is movably attached to the electric motor to extract the liquid that enters the chamber through the injection port; a A starter assembly that is movably attached to the electric motor, the starter assembly is used to start the motor when the liquid outside the pump casing reaches a limited level; and a current sensor The assembly is movably attached to the electric motor to sense the amount of current used to run the electric motor, and when the amount of current used to run the electric motor is less than a limit, the electric motor is stopped Motor operation. 21. The pump according to claim 20 of the scope of patent application, which includes an electromagnetic coupling, r is used to movably attach the motor to the thruster assembly. , -------- ^-5 'Γ (Please read the precautions on the back before filling out this page) Order # 1 Printed by the Consumers' Cooperatives of the Central Bureau of Standards of the Ministry of Economics -24 China National Standard (CNS) A4 specification (210X297 mm)